Improvement in striking-works for clocks



B. BACON.

Striking Works for Clocks.

Witnesses: A 6. aw /.7X%W

UNITED STATES PATENT OEEIGE.

BENJAMIN BACON, OF MORRISON, ILLINOIS.

IMPROVEMENT IN STRiKlNG-WORKS FOR CLOCKS.

Specification forming part of Letters Patent No. 57,843, dated September11, 1866.

To all whom it may concern Be it known that I, BENJAMIN BACON, ofMorrison, in the county of iVhiteside and State of Illinois, haveinvented a new and useful Improvement in Striking-Works for Clocks and Ido hereby make known and declare that the following is a full, clear,and exact description of the same, reference being had to theaccompanying drawings, and the letters and figures marked thereon, whichform part of this specification.

My invention consists in arranging a vertically-reciprocating slideprovided with two pins or projections, in combination with the cam andcount-wheel of a clock, so that said pins will rest in suitable notchesin the cam and count-wheel when the slide is in its lowest position, andthus prevent the striking-works from operating, while the upwardmovement of said slide, produced as hereinafter specified, will detachsaid pins from said cam and count-wheel, and permit the works to moveuntil the proper number of strokes are given,

when said pins fall again into their appropriate rests or stops upon thecam and countwheel aforesaid, and stop said striking-works until theslide is raised again at the proper 7 time, as hereinafter more fullyset forth.

To enable those skilled in the art to understand how to construct anduse my invention, I will proceed to describe the same withparticularity, making reference in so doing to the aforesaid drawings,in which- Figure 1 represents a rear elevation of my invention 3 Fig. 2,a side or edge view of the same 5 and Fig.3, a detached edge view of theslide with its attachments.

Similar letters of reference in the several figures indicate the sameparts of my invention.

A represents the frame which supports the movements of the clock B, thespring which propels the striking-works; and G, the countwheel,constructed in the usual manner, havin g deep slots in its periphery(marked 92,) arranged at variable distances from each other, the spacesbetween being proportioned to number of strokes intended to be given toindicate the changing hours.

D represents a wheel provided with a series of pins, (1, whoserevolution operates the hammer H to give the required number of blows.

E represents the cam, which is provided with a notch, as shown, and isso connected by means of suitable gearing as to make one completerevolution while the count-wheel revolves the spaceof a single cog, asrepresented upon its periphery.

F represents a wheel which gears into or with the shaft of the cam E inany suitable manner, and is provided with a pin, (marked f,) which, inconnection with the arm or lever I, serves to check or hold the worksfrom movin g, after the slide is moved up, until released at the propermoment, as hereinafter specified.

S represents the before-mentioned slide, which may be arranged upon therear or front of the clock, as desired, and be secured by means ofscrews or pins 8, or in any other suitable manner which will permit anupwardand-downward sliding motion of the same. This slide is providedwith the pin a, which opcrates upon the count-wheel, the pin 1), whichoperates upon the cam, and a projection, 0, upon which the arm or leverI operates to raise the slide, as hereinafter fully set forth.

Instead of the projection c, the said arm I- may be so arranged as toact upon either of the pins to or b, if preferred.

I J represent a forked lever, pivoted at e to the frame A, the arm Iextending out just beneath the pin 0 upon the slide, and curved up atthe end so as to hook or catch upon the pin f upon the check-wheel Fwhen raised up, as hereinafter mentioned.

The arm J extends downward, as shown, near the arbor of the minute-handL, so that the revolution of said arbor brings a cam, m, in contact withthe lower end of said arm once in each hour or revolution, and raises upthe 1 arms J and I, which latter raises the slide S, and disengages thepins to b, respectively, from the cam and count-wheel, but at the sametime locks the wheel F, as before mentioned, until such time as the camm upon the arbor L releases the arm J, when the arm I drops and unlocksthe check-wheel F, and the striking commences and continues until theproper number of strokes are given, when the appropriate notch in thecount-wheel comes under the pin a, and the notch in the cam comes underthe pin 1), and the slide drops, the pins falling into their appropriaterests, and the striking-works stop until again released by the 2 v easeshourly action of the cam m upon the arm J, when said above describedoperation is repeated.

Instead of the check-wheel F, the end of the arm I might engage with apin upon the fly or any other wheel, which would check the movement ofthe striking-works until the cam m should release said arm and allow itto drop.

It may be observed that the action of the cam at each revolution thereofraises the slide up from the cogs in the count-wheel until theappropriate stop-notch is reached.

Having described the construction and op-

